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100 Watts of Blue Coming to a Pointer Near You?

LASER66

LASER66

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Here's a nifty projector module...
50 watts of 450nm.
Get out your big batteries, each of 4 legs draws 2.3 amps.
I figure over drive it 2X for a 100 watt blue pointer.
At 25 X 35mm, there may be enough room for knife edging.
:drool:
Production not set until the end of 2014 so don't write asking about it, just a teaser and neat packaging- help projector companies deal with one part, vs multiple diodes.
 

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IsaacT

IsaacT

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Well shit. We will need a hell of a lot of heatsinking for 100W of anything.
 
Rifter

Rifter

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im thinking short bursts(10 seconds or less) only in a portable for heat/battery reasons. Hell even a lab setup would be hard pressed to cool that much power.
 
Sigurthr

Sigurthr

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I really don't see a handheld coming from this. The energy density needed would be insane for even short runs. Remember that 100W output means something like 500W input at best, and surely some of the dies are in series so you'll need a multicell LiPO pack with a very high discharge rating and capacity. Plus then there is the thermal load you need to take care of... ~400W of heat is no joke. Forced air cooling is a necessity and you'll need a massive heatsink just to keep the die from overheating before the active cooling can transfer the energy.
 
crazyspaz

crazyspaz

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Sigurthr said:
I really don't see a handheld coming from this. The energy density needed would be insane for even short runs. Remember that 100W output means something like 500W input at best, and surely some of the dies are in series so you'll need a multicell LiPO pack with a very high discharge rating and capacity. Plus then there is the thermal load you need to take care of... ~400W of heat is no joke. Forced air cooling is a necessity and you'll need a massive heatsink just to keep the die from overheating before the active cooling can transfer the energy.
Click to expand...


This. Its like when people say they want to put a bar array into a handheld... people see power and thats all they see, they dont see power requirements, heat dissipation, beam profile...I would assume this would be more of a flashlight type output then a collimated beam or beams.

There are lots of types lasers that cant be put into a handheld device, this is one of them.
Put it in a giant backpack and fiber couple it to something you can hold, then maybe :p
 
djQUAN

djQUAN

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you can put it in a handheld unit but with an accompanying back pack that has the battery, driver and cooling unit. I assume liquid cooling may be best to keep the handheld part small enough.
 
Hemlock_Mike

Hemlock_Mike

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My Starwarz gun is powered by 8 18650
industrial LiIon cells. About 32 volts at
11 Amps !! Short cycle indeed.
HMike
 
Sigurthr

Sigurthr

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djQUAN said:
you can put it in a handheld unit but with an accompanying back pack that has the battery, driver and cooling unit. I assume liquid cooling may be best to keep the handheld part small enough.
Click to expand...

Would make a good ghostbuster's proton pack cosplay, heh. If you could get good efficiency out of the fiber coupling and collimate it well you'd have one hell of a burning laser.
 
LASER66

LASER66

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5 diodes are wired in series X 4 rows, so voltage and current will be high. 165W input/ 50W out. Get a load of that 3 foot long flashlight !
 
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